What would you be expecting for your $2-3K? One day, a weekend? Group sessions, one-on-one instruction or both? Would you travel to something like this or want it local?
It's not too hard to weed out the pick up artists. They are usually not at all shy about giving advice on how to get to and what to do in the bedroom. Their methods are also mostly centered around the concept of dominance.
Probably a multi week course (not constant), or something that teaches you a skill and gives you the chance to implement social changes. For example, 8 weeks of weekly meetings and 1-2 weekly video lectures, along with a week to practice your new skills.
I've had an interest in setting up a course like this for a while now. I'm actually putting together a short survey right now to gather feedback and gauge interest. If I can find enough people and the format is right, I would make it happen.